"Many factors influence how well teens master the tasks of adolescence. One of the most important factors is the teens' sense of self-esteem."--http://www.cyfc.umn.edu/Documents/H/N/HN1110.html
Self esteem: The way one feels about themselves in simple terms, without stating the actual feelings, just good and bad. Self esteem influences many thoughts and actions.
Low self-esteem is related to a number of physiological occurrences including depression, suicide, and other violent acts.
Check out
my
different pages on thing that are affected and/or caused by low self
esteem. Note: the side bar links should be visited in order from top to
bottom.